Htovila Calculator Desktop Calculators with LCD Writing Tablet 12 Digits Display 4inches LCD Screen with Stylus Erase Button Thin and lightweight Design for Students Daily and Basic Office Meeting S

Features: Calculator with Writing Pad - A combination of calculator and handwriting board, which provides noting place while calculating, improving study and work efficiency. Convenient & Portable - Calculator weight only 108g(3.8oz), very compact that you can carry around in your bag. And use it immediately when needed, convenient for taking notes on phone calls, quick notes, and meeting minutes.  Healthy and Eco-friendly - The writing board supports repeated writing, reducing paper consumption and is made of blue light-free LCD screen for eye protection. Two-way Power - Solar energy powers the calculator, no batteries needed. The notepad is powered by 1 * CR2023 button battery, no need to and connect, ultra-low power consumption, long service life.  Simplicity Design - With the stylus pen attached to its side, you can use it for arithmetic and writing or painting simultaneously. And one button to erase the draft, one button to lock  and protect the writing as well. Specification: Color: Black, White, Grey (Optional) Material: ABS  Screen Size: 4-inch, 3.5-inch (Optional) Power By: CR2032 Button battery 3V, 240mAh Product Size:  4-inch: 122x92x15mm, 108g/3.8oz 3.5-inch: 160x94x13.8mm, 108g/3.8oz Package Size: 4-inch: 135x105x19mm/5.3x4.1x0.7in, 135g/4.8oz 3.5-inch: 170x105x17mm/6.7x4.1x0.7in, 148g/5.2oz Packing List: 1 x Calculator with Writing Pad 1 x Stylus 1 x User Manual

Calculator with Writing Pad - A combination of calculator and handwriting board, which provides noting place while calculating, improving study and work efficiency.Convenient & Portable - Calculator weight only 108g(3.8oz), very compact that you can carry around in your bag. And use it immediately when needed, convenient for taking notes on phone calls, quick notes, and meeting minutes.Healthy and Eco-friendly - The writing board supports repeated writing, reducing paper